There is a worthwhile argument here but unfortunately it's a single
paragraph:

"[...] In humans, this balance between isolation and intercommunication is
maintained by our seeing, hearing, speaking and gesturing activities, whose
slow intercommunication speed, compared to thinking, most likely represents
the best evolution could do to simultaneously preserve the individual and
society."

He's not arguing that wiring the brain up would be impossible but that fast
data tranfer would be both unfeasible and undesirable.

Michael Dertouzos replied to Bradbury's letter:

> It is precisely because I know where we are and where we are headed with> A.I., object oriented programming, software agents, and the like that I> make my statements. These "promises" sound great in the press and to the> lay (in C.S.) people but they are currently not even beginning to help us> capture and transfer the representation of human concepts, beyond simple> electronic signals. The ability to do so in future is currently a wish.> It may come about, of course, but we have no glimpse of a technologically> based promise to that end.

It's clear to me after reading this that Dertouzos' motive for writing this
article is because he has to deal with this sort of crap on regular basis:

You can extract the raw data, you can map concepts to it, but how do you
inject that data into another brain? You need a much finer undersanding to
be able to move memories and thoughts from one brain to another, especially
in realtime. The computer necessary to moderate interactions between two
brains would probably be greater than human-equivalence, adding more brains
to the collective could see a huge increase in necessary power. Brains are
not made for this sort of fast direct communication. This line of reasoning
only argues against direct links and knowledge injection (see the Matrix)
but implants to boost speed, perhaps improve memory (of the standard kind,
not the kind that can be swapped, traded, augmented, et cetera) and repair
damage are likely to be common place.